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Question

How many grams of oxygen are required for complete combustion of 2 moles of benzene?



A

450g

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B

480g

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C

500g

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D

530g

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Solution

The correct option is D

480g


The balanced reaction for combustion of benzene is

2C6H6+15O212CO2+6H2O

Therefore, 15 moles of oxygen gas is required for complete combustion of benzene.

We know that, 1 mole of O2 = 32g

15 moles of O2 = 15×32 = 480g


Chemistry

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